Check if flight or flight.info is not nil. Without this check a panic then subsequent deadlock can occur
Add note about query being auto-prepared to Query() function
Updated AUTHORS file
Merge pull request #180 from corydoras/master

Add note about query being auto-prepared to Query() function
When creating a session, gocql queries the cluster and fills out the Hosts based on what the cluster has configured.
changed !exists to exists == false
Added configuration item for DiscoverHosts
Removed redundant Boolean == checks in if
Fixed spacing, added feature to README, and included my name in AUTHORS
Fixed ambiguous DiscoverHosts comment.
Accidental .gitignore changes fixed
Comment on DiscoverHosts config item changed
Comments and Readme changes
Merge branch 'master' of github.com:benf-inova/gocql
Merge branch 'master' of github.com:gocql/gocql

Conflicts:
	AUTHORS
Merge pull request #181 from benf-inova/master

Create Session Discovers Other Hosts
Merge pull request #179 from ChannelMeter/fix-batch-deadlock-nil-access

executeBatch can cause a dead lock to a nil deref causing c.prepMu not to be unlocked.
Added note about contributing to the project
Addressed reviewer's remarks
Minor formatting tweaks